Evaluate
16\sqrt{26}\approx 81.584312217
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\sqrt{256+80^{2}}
Calculate 16 to the power of 2 and get 256.
\sqrt{256+6400}
Calculate 80 to the power of 2 and get 6400.
\sqrt{6656}
Add 256 and 6400 to get 6656.
16\sqrt{26}
Factor 6656=16^{2}\times 26. Rewrite the square root of the product \sqrt{16^{2}\times 26} as the product of square roots \sqrt{16^{2}}\sqrt{26}. Take the square root of 16^{2}.
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